![]() This article has been viewed 33,395 times. Hartl also founded the international non-profit, Gift of Sight, which is dedicated to curing blindness across the globe. She is passionate about incorporating technology into the future of eye care and has started a public education initiative to inform everyday LED screen users about the effects and the easy ways to protect themselves while continuing to use their devices. Hartl also trained at the world-renowned Bascom Palmer Eye Institute. She received a BA in Biology from Harvard University and earned her Doctor of Medicine (MD) from The University of California-San Diego Medical School. Hartl is a blue light expert and specializes in studying the effects of natural and artificial light on people’s eyes and bodies. ![]() ![]() Kara Hartl is a board certified Ophthalmologist and the Founder and CEO of Mountain View Eye Center in Fairbanks, Alaska. This article was co-authored by Kara Hartl, MD, FACS and by wikiHow staff writer, Madeleine Criglow. There are 7 references cited in this article, which can be found at the bottom of the page. This is an extremely good product, very intelligently designed. NightFall glasses use the world's most advanced blue and green light blocking lenses designed for after-dark use, making them much more effective at reducing the harmful effects of blue and green light and improving your sleep.This article was co-authored by Kara Hartl, MD, FACS and by wikiHow staff writer, Madeleine Criglow. 100 coverage black out, flexible for all head/face shapes. For optimal night-time protection we need to remove 100% of blue AND green light up to 550nm.īe careful, as there are many other "blue blocking" glasses on the market that have not been verified to block all the required blue and green light wavelengths which is essential for these glasses to be effective and provide adequate night-time protection! Green light up to 550nm at night can also send daytime signals to the brain. Green light is right next to blue light on the visible colour spectrum, this means that the "melatonin disruption zone" also extends into the green light range. This is the exact range of blue and green light shown in scientific studies and trials to lower melatonin levels and lower sleep quality. Our scientifically-designed-and-manufactured blue and green light blocking glasses not only block blue light but make you look good while doing it!įeaturing our custom-designed Noctural Red 550 Lens, these glasses have been specifically designed and proven to block 100% of blue and green light from 380-550nm. South Georgia & South Sandwich Islands (GBP £)
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